但在当前应采用过渡目标模式。
But should adopt the goal model of the transition at present.
一位高官表示，这将是追求“过渡目标”的一年。
It will be a year of pursuing "interim goals", says a senior official.
除了指导值之外，空气质量准则也为有关室外空气污染的每项空气污染物提出了过渡目标，以便促进逐渐从高浓度向低浓度过渡。
In addition to guideline values, the AQGs give interim targets related to outdoor air pollution, for each air pollutant, aimed at promoting a gradual shift from high to lower concentrations.
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